#include <stdlib.h>
#include <string.h>
#include <stdio.h>
struct student 
{
    int age;
    float score;
    char sign[0];
};
void Max(int n,int a[n])
{
    int i;
    int max;
    max=a[0];
    for(i=1;i<n;i++)
    {
        if(max<a[i])
            max=a[i];
    }
        printf("%d\n",max);
}
int main(void)
{
    //零长数组；
    struct student *jack=malloc(sizeof(struct student)+200);


    //变长数组；
    int len=3;
    int b[len];
    b[0]=45;
    b[1]=464;
    b[2]=55;
    Max(len,b);
    
    int c[len];
    len=4;
    c[0]=45;
    c[1]=88;
    c[2]=55;
    c[3]=-44;

    Max(len,c);
    return 0;

}